JAMB - Mathematics (1983 - No. 25)
If a rod of length 250cm is measured as 255cm long in error, what is the percentage error in the measurement?
55
10
5
4
2
Explanation
% error = \(\frac{\text{Actual error}}{\text{real value}}\) x 100
= \(\frac{5}{250}\) x 100
= 2%
= \(\frac{5}{250}\) x 100
= 2%
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